Wording for problem 81 changed to make it more understandable.

Today, we have eliminated the use of cookies from this site. We were made aware of certain security holes with the use of just cookies so now, everything will be done with the use of sessions. You will need to login each time you use the site. Sorry for the possible inconvenience but it is much safer now.

Added problem 108 to the challenges section of the site.

I also should point out that a big thanks goes to the user noother as he (among some others) helped us with solving the answer script bug! It now prevents multiple solvers and rewards points increases.

Any other problems like this should be reported to us (it only helps us out!)

Added problem 107 "Duck Duck Goose" to the challenges section of the site.

Added problem 106 "Sudoku Math" to the challenges section of the site.

We are back after a month of nothing! We added problem 104 "Lojban I" and problem 105 "Lojban II" to the challenges section of the site.

We have made some improvements to the problems page and leader board pages. There were some small bugs that were fixed and we also added page jumping to the pages to enable them to load faster for the slower connections.

Today, we are proud to announce that we are listed at wechall.net, a listing of challenge websites around the world. I want to thank the site admin over there for taking the time and grace to place us there. I also want to thank the user elasolova for the suggestion!

We have also made the login/logout procedure better. It now takes you back to the page you were instead of back to the homepage. This is better site navigation.

Added problem 102 "Equal Sum Partition" as well as problem 103 "Stepping Stones" to the challenges section of the site.

Also, Happy Veteran's Day and thank you soldiers, past and present, for your services over the years!

Added problem 100 "Next Larger Permutation" as well as problem 101 "The Two Note Rag" to the challenges section of the site.

We have also added a section for our book "Reviewing C++" to allow people who purchase the book to get ALL the source code to the books examples (over 100 programs). Thanks to some people's suggestions for this one as well as everyone's continued support of the books.

Added problem 98 "Adjacent Bit Count I" and problem 99 "Adjacent Bit Count II" to the challenges section of the site.

Added problem 97 "Filtering Strings" to the challenges section of the site.

Added problem 96 "A Math Puzzle" to the challenges section of the site

Added problem 94 "Reverse of a reverse" and problem 95 "A friendly dice game" to the challenges section of the site.

Added problem 92 "Binary Hamming Distance" and problem 93 "Hexadecimal Hamming Distance" to the challenges section of the site.

Added problem 90 "Sum of consecutive integers" and problem 91 "No sum for n" to the challenges section of the site.

Added problem 88 "Palindromic Primes" and problem 89 "Sum of Perfect Numbers" to the challenges section of the site.

Added problem 87 "Bit Sums" to the challenges section of the site.

We are proud to introduce our SuDoKu section of puzzles. Everyone enjoys a good Sudoku puzzle on occasion and can save money on buying a Sudoku book by solving puzzles here!

We have begun to embed our videos that correspond to our C++ tutorials on our YouTube channel. For now, C++ Tutorials 1,2 and 3 have been updated as that is all the content we have on our channel for now.

I am also considering a video section of the site anyway where people can post videos of any topic (Math, Algorithms, General tutorials, C++ or Java programming). Please express your thoughts here on the forum entry.

Added problem 86 "Counting Polyminos" on the challenges section of the site.

Also completed our newest product which is the binary calendar available here. It makes a great gift for a computer geek!

Added problems 84 "Prime Factorial Sums" and problem 85 "Fibonacci Factorial Sums" to the challenges section of the site.

Added tutorial 3 and 4 with their parts to our YouTube channel.

Added problem 83 "Divisors of Factorial Numbers" to the challenges section of the site.

Added problem 81 "Morse Code Factorial" to the challenges section of the site as well as problem 82 "N-Squared sequence" (after someone found the trick)!.

Added problem 80 "Three Card Poker", to the challenges section of the site.

Also fixed the leader-board error that was found by hk.

Removed the URL feature from the profile page due to lack of knowledge and/or interest.

We have now added video tutorial 3 on C++ to YouTube! View it here: Video Channel

We will also not be updating anything for a week since the webmaster is on vacation in Vegas!

Added problem 79 to the challenges section.

Also made two corrections to problem 78. Originally, there was wording problems which may not have aided the problem in any way. (Thanks manfred!)

Added problem 78, Matrix Multiplication, to the challenges section of the site.

In addition, we changed the profile page to allow you to update it with your own URL. Please update your current profile please!

Added a math handout in the math tutorials section of the site entitled "Lottery Jackpots"

Added problem 77, 3n+1 problem, to the challenges section of the site.

Added problem 76, Mysterious Array II, to the challenges section of the site.

Added problem 75, Mysterious Array, to the challenges section of the site.

Added problem 73, Fibonacci Triangle, to the challenges section of the site.

Added problem 74, The 20th Century, to the challenges section of the site.

Today we have launched our live help section of the site. This is a feature that not too many other sites have and we are proud to offer it FREE of charge

You may used this section if you are having trouble with any homework's or projects or even any of the posted challenges.

Any issues should be reported on the foum.